larry moe 'n curly <larrymoencurly@my-deja.com> wrote
> Rod Speed wrote
>> larry moe 'n curly <larrymoencurly@my-deja.com> wrote

>>> My batting average for Kingston ValueRAM is 8 bad PC3200 modules
>>> out of 11 or 12 and maybe 30% bad PC2100 modules. The number
>>> of errors seemed to correlate with the markings on the chips

>> They aint 'bad', the bios just isnt using the appropriate timing etc for them.

> One BIOS was in an Asrock/Asus KT400
> mobo, the other in an ECS nForce3 mobo.

The technical term for that is 'pathetically inadequate sample'

> Thaiphoon reported the same SPD timings for all of these PC3200
> modules, but all the modules with the completely unmarked chips all
> failed, most of those with Dxxxxxx chips failed, while almost all the
> modules with Fxxxxx chips tested fine, and even the failing ones
> showed only 3-5 errors.

Very unlikely indeed that all the ones that were
unmarked were deliberately shipped by Kingston BAD.

Much more likely that the data in the spd is incorrect with SOME chipsets etc.

And we are currently seeing with DDR2 ram, some motherboard bios
like one Gigabyte particularly going thru plenty of revisions of the bios
to even allow the system to boot with known good high quality ram, so
its not just a simple matter of reading the spd and using the values in it.